Aussie Magnets :: Glossary
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Word Description
Electromagnet Non-permanent magnets that are created when electric current is passed through a coil that surrounds a soft metal core. The electricity passing through the coil induces a magnetic field. The strength of the field depends on the strength of the electrical current and the number of coils. The polarity is determined by the direction of the current flow, and hence electromagnets can easily be ‘reversed.’